diff --git a/backend/api/v1/modules/core/invites/service.py b/backend/api/v1/modules/core/invites/service.py
index 447ad72d..04c6fd1a 100644
--- a/backend/api/v1/modules/core/invites/service.py
+++ b/backend/api/v1/modules/core/invites/service.py
@@ -78,25 +78,48 @@ class InviteService:
         # Crear invite en el Hub para que el usuario use el form del workspace
         hub_invite_token: Optional[str] = None
         invite_url: str = ""
-        try:
-            async with httpx.AsyncClient(timeout=10.0) as client:
-                login_resp = await client.post(
-                    f"{settings.HUB_URL}api/v1/auth/login",
-                    json={"username": settings.HUB_ADMIN_EMAIL, "password": settings.HUB_ADMIN_PASSWORD},
-                )
-                if login_resp.status_code == 200:
-                    svc_token = login_resp.json().get("access_token", "")
-                    hub_resp = await client.post(
-                        f"{settings.HUB_URL}api/v1/hub/invites",
-                        json={"email": str(data.email), "tenant_slug": tenant_slug},
-                        headers={"Authorization": f"Bearer {svc_token}"},
+        if not settings.HUB_ADMIN_EMAIL or not settings.HUB_ADMIN_PASSWORD:
+            logger.error(
+                "[invite] HUB_ADMIN_EMAIL o HUB_ADMIN_PASSWORD no configurados — "
+                "el invite NO se creará en el Hub y se usará el fallback local. "
+                "Configura HUB_ADMIN_EMAIL y HUB_ADMIN_PASSWORD en .env"
+            )
+        else:
+            try:
+                async with httpx.AsyncClient(timeout=10.0) as client:
+                    login_resp = await client.post(
+                        f"{settings.HUB_URL}api/v1/auth/login",
+                        json={"username": settings.HUB_ADMIN_EMAIL, "password": settings.HUB_ADMIN_PASSWORD},
                     )
-                    if hub_resp.status_code in (200, 201):
-                        hub_data = hub_resp.json()
-                        hub_invite_token = hub_data.get("invite_token") or _extract_token_from_url(hub_data.get("invite_url", ""))
-                        invite_url = hub_data.get("invite_url", "")
-        except Exception as exc:
-            logger.warning("Hub invite creation failed (non-blocking): %s", exc)
+                    if login_resp.status_code != 200:
+                        logger.error(
+                            "[invite] Hub login falló: status=%s body=%s — "
+                            "verifica HUB_ADMIN_EMAIL=%s y HUB_ADMIN_PASSWORD en .env",
+                            login_resp.status_code,
+                            login_resp.text[:200],
+                            settings.HUB_ADMIN_EMAIL,
+                        )
+                    else:
+                        svc_token = login_resp.json().get("access_token", "")
+                        hub_resp = await client.post(
+                            f"{settings.HUB_URL}api/v1/hub/invites",
+                            json={"email": str(data.email), "tenant_slug": tenant_slug},
+                            headers={"Authorization": f"Bearer {svc_token}"},
+                        )
+                        if hub_resp.status_code in (200, 201):
+                            hub_data = hub_resp.json()
+                            hub_invite_token = hub_data.get("invite_token") or _extract_token_from_url(hub_data.get("invite_url", ""))
+                            invite_url = hub_data.get("invite_url", "")
+                        else:
+                            logger.error(
+                                "[invite] Hub invite creation falló: status=%s body=%s tenant=%s email=%s",
+                                hub_resp.status_code,
+                                hub_resp.text[:300],
+                                tenant_slug,
+                                data.email,
+                            )
+            except Exception as exc:
+                logger.error("[invite] Hub invite creation excepción (non-blocking): %s", exc)
 
         # Fallback: URL del workspace (Hub) si la creación de invitación en Hub falló
         if not invite_url: